-28-
2. Fuse does not
blow.
No continuity.
Continuity.
No continuity.
Defective power
supply cord.
Replace power
supply cord.
Defective
thermostat.
Replace
thermostat.
Check continuity
of thermostat.
Check continuity
of power supply
cord.
CONDITION
CHECK
RESULT
CAUSE
REMEDY
(TROUBLE 2) Oven does not operate at all, Display window does not display any figures,
and no input is accepted.
1. Fuse blows.
Continuity.
No continuity.
Malfunction of the
monitor switch.
Replace fuse,
primary, monitor,
switches, and
RELAY(RY2) of
P.C.B Assembly.
Check continuity
of monitor
switch (with
door closed).
Continuity.
No continuity.
Shorted contact at
the primary switch.
Replace fuse,
primary, monitor,
switches, and
RELAY(RY2) of
P.C.B Assembly.
Check continuity
of primary
switch (with
door opened)
Normal.
Replace fuse
Fuse blows again
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Disconnect one
side of the wire
lead connected
from transformer
to the high
voltage
capacitor and
operate the unit.
Defective high volt-
age transformer.
Replace high volt-
age transformer.
Summary of Contents for 721.62252200
Page 9: ...8 A II SCHEMATIC DIAGRAM Check the Model No ADD Noise filter...
Page 10: ...9 B MATRIX CIRCUIT FOR TOUCH KEY BOARD Figure 4...
Page 34: ...33 2000 2002 2001 2006 2004 2381 W106 EV CONTROL PANEL PARTS MODEL 721 62259 721 62252...
Page 35: ...34 2004 2381 2001 2003 2005 2382 2006 W106 EV CONTROL PANEL PARTS MODEL 721 62253 721 63263...
Page 37: ...36 W102 4002 4000 4003 4002 4004 EV LATCH BOARD PARTS MODEL 721 62259 721 62252...
Page 38: ...37 W102 4002 4003 4002 4000 EV LATCH BOARD PARTS MODEL 721 62253 721 63263...
Page 41: ...40 5008 6000 6001 W108 W101 W109 6002 9001 EV BASE PLATE PARTS...
